1RM calc app play online

This app provides an easy way to calculate the maximum amount of weight you can lift for a particular movement. This is based on maximum number of repetitions that you can perform of a specific weight.

Calculating your 1RM (One Rep Max), as apposed to determining your 1RM with actual weight, is a safer approach. During training, this approach can help to prevent injury, reduce excessive stress on your joints.

The main benefit of knowing your 1RM is that you can calculate the amount of weight you should be training with during specific training phases:

MxS phase (Maximum Strength): 85% - 95% of your 1RM
Hypertrophy phase (Muscle-building): 60% - 80% of your 1RM
MD phase (Muscle Definition): 30% - 50% of your 1RM

This app also calculates the percentages for these three phases for your upon calculating your 1RM, allowing you to spend your time working out instead of having to do math.